Drying machine of pollution to the environment
Our country existing various kinds of drying machine, steam drying accounted for more than 80%.While the furnace gas and direct fire smoke dry more in small businesses.Dry steam in the boiler for heating equipment, the average thermal efficiency of industrial boiler and its network in China is 60%, at the same time, dry steam inlet and exhaust heat loss is larger, accounts for about 40% of the steam heat, heat losses and wall doors, so that the steam drying of an energy efficiency generally lower than 30%.
Dry high energy consumption, not only increase the cost of products, and make the boiler smoke and exhaust fumes and drying chamber increase, thereby increasing the these harmful material of atmospheric pollution.With years of the steam drying capacity of 10000 cubic meters of wood drying workshop, for example, takes about a match 4 t/h boiler, its discharge of harmful substances as per hour: smoke quantity about 40 kg, CO2:1900 cubic meters and SO2:45 cubic meters, and a small amount of NO2, which is caused by the atmospheric greenhouse effect, acid rain and ozone destruction of the main factors.
According to the relevant information, in the global monitoring online, in 40 particles to the sorting of the most polluted cities, shenyang, xian, Beijing, Shanghai and guangzhou in the top 10.Due to the contribution of energy to link up to 70% ~ 80%, so the energy-saving problem of wood drying must attach importance to it.Hangzhou much is aimed at the problem of high energy consumption of the drying, design and manufacture the MCH series hot air circulation timber drying machine, its the biggest characteristic is: waste heat recycling type high efficiency and energy saving rapid drying, the hot air circulation wood dryer is the existing chamber (box) discharge to don’t waste heat as heat source in the air, using heat coil heat absorption of heat in the air, and make the air more and more dry, with heat and dry air is the cooling coil pipe reheating, higher and higher temperature, reach the set temperature, bypass solenoid valve let urself by-pass pipe refrigerant, heat absorption of the hot air source heat pump assembly;Because for thermal insulation heat preservation box adopts thermal insulation, heat losses is slow, so the vast majority of can stay in the material used for drying oven heat preservation, heat, can implement high efficiency and energy saving in environmental protection at the same time.